USN-6296-1 (UBUNTU-CVE-2023-39417)

Vulnerability from osv_ubuntu – Published: 2023-08-17 11:56 – Updated: 2026-04-27 14:11 – Source website
VLAI
Summary
postgresql-12, postgresql-14, postgresql-15 vulnerabilities
Details

It was discovered that PostgreSQL incorrectly handled certain extension script substitutions. An attacker having database-level CREATE privileges can use this issue to execute arbitrary code as the bootstrap superuser. (CVE-2023-39417)

It was discovered that PostgreSQL incorrectly handled the MERGE command. A remote attacker could possibly use this issue to bypass certain UPDATE and SELECT policies. This issue only affected Ubuntu 23.04. (CVE-2023-39418)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-39417",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-12",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-client-12",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-doc-12",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-plperl-12",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-plpython3-12",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-pltcl-12",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "postgresql-server-dev-12",
            "binary_version": "12.16-0ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "postgresql-12",
        "purl": "pkg:deb/ubuntu/postgresql-12@12.16-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12.16-0ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "12.0-1",
        "12.1-1",
        "12.1-2build1",
        "12.2-1",
        "12.2-1ubuntu2",
        "12.2-4",
        "12.4-0ubuntu0.20.04.1",
        "12.5-0ubuntu0.20.04.1",
        "12.6-0ubuntu0.20.04.1",
        "12.7-0ubuntu0.20.04.1",
        "12.8-0ubuntu0.20.04.1",
        "12.9-0ubuntu0.20.04.1",
        "12.10-0ubuntu0.20.04.1",
        "12.11-0ubuntu0.20.04.1",
        "12.12-0ubuntu0.20.04.1",
        "12.13-0ubuntu0.20.04.1",
        "12.14-0ubuntu0.20.04.1",
        "12.15-0ubuntu0.20.04.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-39417",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libecpg-compat3",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "libecpg6",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "libpgtypes3",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "libpq5",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-14",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-client-14",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-doc-14",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-plperl-14",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-plpython3-14",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-pltcl-14",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          },
          {
            "binary_name": "postgresql-server-dev-14",
            "binary_version": "14.9-0ubuntu0.22.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "postgresql-14",
        "purl": "pkg:deb/ubuntu/postgresql-14@14.9-0ubuntu0.22.04.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "14.9-0ubuntu0.22.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "14.1-1ubuntu1",
        "14.2-1",
        "14.2-1ubuntu1",
        "14.3-0ubuntu0.22.04.1",
        "14.4-0ubuntu0.22.04.1",
        "14.5-0ubuntu0.22.04.1",
        "14.6-0ubuntu0.22.04.1",
        "14.7-0ubuntu0.22.04.1",
        "14.8-0ubuntu0.22.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that PostgreSQL incorrectly handled certain extension\nscript substitutions. An attacker having database-level CREATE privileges\ncan use this issue to execute arbitrary code as the bootstrap superuser.\n(CVE-2023-39417)\n\nIt was discovered that PostgreSQL incorrectly handled the MERGE command. A\nremote attacker could possibly use this issue to bypass certain UPDATE and\nSELECT policies. This issue only affected Ubuntu 23.04. (CVE-2023-39418)\n",
  "id": "USN-6296-1",
  "modified": "2026-04-27T14:11:31Z",
  "published": "2023-08-17T11:56:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6296-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-39417"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-39418"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "postgresql-12, postgresql-14, postgresql-15 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-39417",
    "UBUNTU-CVE-2023-39418"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.